MEADE® LXD75™ 豪华版系列

 

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PREMIUM MEADE® LXD75™ OPTICS Optical Tube Construction Schmidt-Newtonian and Schmidt-Cassegrain optics are mounted in precision-machined aluminum cells and mounted in sturdy steel tubes which are baked with highgrade textured enamel paint. The optical tube assembly is closed, reducing air currents inside the tube. This prevents distortion of an otherwise sharp image. Plus, a closed tube significantly helps keep the optics clean. Corrector Lens Fully corrects for spherical aberration and provides pinpoint star images. Water white glass is used in all Schmidt-Newtonian and Schmidt-Cassegrain corrector lenses to maximize light transmission. The use of water white glass results in an increase of light transmission in excess of 10%, as compared to competing telescopes using soda lime glass. Individually Figured Optics Schmidt-Newtonian and Schmidt-Cassegrain corrector lenses and mirrors are individually figured to create a superior optical system which is renowned for its exquisite smoothness and performance. Pyrex® Primary Mirror Premium-grade Pyrex mirrors are used in all Schmidt-Newtonian and Schmidt-Cassegrain optical systems, providing exceptional thermal stability versus competing models using standard plate glass. Fast f/Ratios Meade’s Schmidt-Newtonians have extremely fast, well corrected f/Ratios for short photographic exposure times and wide fields-of-view. 2" Focuser Rack and pinion focuser allows the user to achieve a precise focus.* Accepts both 1.25" & 2" Eyepieces.   STABLE MEADE LXD75 GERMAN EQUATORIAL MOUNT Sturdy Mount with Heavy-Duty Castings Designed by Meade’s engineers and manufactured for high-performance observing and astrophotography. Shaft & Bearing System The sturdy German Equatorial Mount is accurate and precise. The RA and Dec axes move effortlessly on four highprecision stainless steel ball bearings. High-Precision Worm Gears Located on both axes for smooth tracking and slewing. High-Precision Pointing (HPP) For even more precise pointing use the HPP function. HPP puts objects in the center of the field-of view which allows you to confirm deep sky objects at the faintest limits of the telescope’s capability. Periodic Error Correction Corrects periodic errors on the RA axis over the course of one or more training periods, thereby minimizing guiding corrections during long-exposure photography. 9-Speed Drive Controls From a rapid slew rate of 4.5°/sec. to 1x sidereal—it’s all controlled from the AutoStar controller. 3-Star Alignment Ensures precise alignment. It eliminates the need for a complicated optical/mechanical alignment process. Heavy-Duty Tripod Variable-height field tripod with spreader bar brace provides the stability and vibration damping required for visual observation and astrophotography. Illuminated Polar Alignment Viewfinder For quick, precise polar alignment. Power Supply Powered by 8 D-size batteries. Can also be powered by optional car cigarette lighter or AC wall adapter.

MEADE AUTOSTAR®  The AutoStar controller helps you quickly find, and GO TO over 30,000 objects in the night sky. View planets, stars, galaxies, nebulae, and comets…all at the push of a button. AutoStar is pre-programmed with several guided tours, including the popular Tonight’s Best™. Input date, time and location—then let AutoStar take you on a guided tour of the best objects that particular night.   OPTIONAL ACCESSORIES • Deep Sky Imager III

STANDARD FEATURES

Telescope Mounting: LXD75, German-type Setting Circle Diameters, RA and Dec.: 2.25" Polar Illuminated Viewfinder: included RA Control System: 9-speed, microprocessor-controlled, 12v DC, 72mm (2.83") worm gear Declination Control System: 9-speed, microprocessor-controlled, 12v DC, 72mm (2.83") worm gear Hemispheres of Operation: North and South GO TO Pointing Precision (approx.): 15 arc mins. Slow-Motion Controls: electric, both axes Bearings: 2 – Ball Bearings RA: outer – 1x58mm, 1x47mm; inner – 1x45mm, 1x35mm DEC: outer – 1x72mm, 1x47mm; inner – 1x55mm, 1x30mm AutoStar® Hand Controller: PIC 16C57 microcontroller; 2 line x 16 alphanumeric character display; 20-button keypad, red LED backlit Main Telescope Controller: Motorola® 68HC11 microprocessor; 1-Megabyte flash memory (field reprogrammable); 32K RAM Batteries (user-supplied): 8 x D-cells. LXD75-Series models may alternatively be powered from an automobile cigarette lighter plug, using the #607 Power Cord, or from a 115v AC home outlet, using the #547 AC Adapter; both the #607 and the #547 include 25 ft. cords. (not included) Battery Life (approx.): 40 hours Onboard Celestial Object Database: 30,223 objects Slew Speeds both axes: 1x, 2x, 8x, 16x, 64x, 128x sidereal; 1.5°/sec., 3°/sec., 4.5°/sec. Tracking Rates: sidereal, lunar, or custom-selected from 2000 incremental rates

Optical Design Newtonian Schmidt-Newtonian Schmidt- Cassegrain Achromatic Refractor Model N-6 AT SN-6 AT SN-8 AT SN-10 AT SC-8 AT AR-5 AT AR-6 AT Part Number 0605-75-11 0605-75-02 0804-75-02 1004-75-02 0810-75-02 0509-75-01 0608-75-01 Aperture 6" (152mm) 6" (152mm) 8" (203mm) 10" (254mm) 8" (203mm) 5" (127mm) 6" (152mm) Focal Ratio f/5 f/5 f/4 f/4 f/10 f/9 f/8 Focal Length 762mm 762mm 812mm 1016mm 2000mm 1143mm 1219mm Primary Mirror Plate Glass Pyrex® Pyrex® Pyrex® Pyrex® N/A N/A Viewfinder 6 x 30 8 x 50 8 x 50 8 x 50 8 x 50 8 x 50 8 x 50 Hand Controller Electronic AutoStar #497 AutoStar #497 AutoStar #497 AutoStar #497 AutoStar #497 AutoStar #497 UHTC Included Included Included Included Included Included Included